How to set the value of private variable in a super class using mockito or powermockito

I have three classes A, B and C Where A is abstract class, B is also an abstract class and B extends A and C is non-abstract which extends B. I have variable by name AddressService addressService which is public in class B and is private in class A. I am writing a test case for class C which is non-abstract and calling method which is in class A and in class A i need to set the value of AddressService addressService variable which is used to invoke a method. AddressService is an interface which has methods and i am invoking one of the method in my super class A. Following is my code

public interface AddressService{
void test();
}

public abstract class A{

    private AddressService addressService = (AddressService) ServiceLocatorBeanFactory.getService(AddressService.class);

 public void createDocument(){
 addressService . test();
}

}

public abstract class B extends A{
public AddressService addressService = (AddressService) ServiceLocatorBeanFactory.getService(AddressService.class);
}

public class C extends B {
}

Here is my test class

@RunWith(PowerMockRunner.class)
@PrepareForTest({ServiceLocatorBeanFactory.class})
public class createTest {

    @SuppressWarnings("unchecked")
    @Test
    public void createTurnaroundDocument() throws Exception{

        PowerMockito.mockStatic(ServiceLocatorBeanFactory.class);       

        AddressService addressService = Mockito.mock(AddressService.class);
        PowerMockito.when(ServiceLocatorBeanFactory.getService(AddressService.class)).thenReturn(addressService);

        C original = new C();
        C handler = PowerMockito.spy(original);
        handler.createDocument();
    }
}

I tried setting the value of AddressService addressService present in class A which is abstract in multiple ways but still the value is null and i get NullPointer Exception.

Following are the different ways

1.Whitebox.setInternalState(handler, AddressService.class, addressService);

When i set this way the value is not set and is null and gives me NullPointerException

2.MemberModifier.field(A.class, "addressService").set(A.class, addressService);

When i set this way i get the following exception

java.lang.IllegalArgumentException: Can not set AddressService field A.addressService to java.lang.Class

3.Whitebox.setInternalState(A.class, AddressService.class, addressService);

When i set this way i get the following exception

org.powermock.reflect.exceptions.FieldNotFoundException: No static field assignable from "AddressService" could be found in the class hierarchy of A.

4.Whitebox.setInternalState(A.class, "addressService", addressService);

when i set this way i get the following exception

org.powermock.reflect.exceptions.FieldNotFoundException: No static field named "addressService" could be found in the class hierarchy of A.

Is there a way where we can set the value of private variable present in the super class using Mockito or PowerMockito. Please help